If an iron core is removed from a solenoid the magnetic field of the strength of the solenoid will
increase
decrease
remain the same
If the number of turns in a solenoid is increased and the current is kept constant, the magnetic field strength of the solenoid will
increase
remain the same
decrease
An electromagnet would have the greatest strength if its wire were wrapped around a core made of
copper
aluminum
iron
wood
If the velocity of an electron
moving perpendicularly through a magnetic field were increased, the force on the electron would
increase
remain the same
decrease
As a charged particle moves through a magnetic field, the particle is deflected. The magnitude of the magnetic force acting on the particle is directly proportional to the
electric charge on the particle
work done on the charge by the magnetic field
polarity of the magnetic field
mass of the particle
A conductor is moving perpendicularly to a uniform magnetic field. Increasing the speed of the conductor will cause the potential difference induced across the ends of the conductor to